Magnificent tetra

Magnificent tetra
Spotted tetra ( Crenuchus spilurus )
Systematics
Cohort : Otomorpha Sub-cohort : Ostariophysi Otophysa Order : Tetras (Characiformes) Family : Blue tetra and ground tetra (Crenuchidae) Subfamily : Magnificent tetra
Scientific name
Crenuchinae
Buckup , 1998

The black tetra (Crenuchinae) are a subfamily of the black tetra (Crenuchidae) that occurs in the Amazon and the Rio Negro . It consists of two genera, the genus Crenuchus and the genus Poecilicharax .

Differing from the typical appearance of tetras the body shape is more kärpflingsartig squat and overly stretched. A short gastrointestinal tract and a deep gap in the mouth indicate a predatory way of life. The main sources of food are likely to be invertebrates and fry. Blue tetra reach a total length of about six centimeters.

A characteristic feature of this group is an organ with currently unknown function on the top of the head.

Systematics

There are two genera with three types:

• Blue tetra (Crenuchinae)
  • Genus Crenuchus
    • Crenuchus spilurus ( Crenuchus spilurus ) Günther, 1863
  • Genus Poecilocharax
    • Poecilocharax bovaliorum Eigenmann, 1909
    • Green-point predatory tetra ( Poecilocharax weitzmani ) Géry, 1965

literature

• Joseph S. Nelson : Fishes of the world , Fourth Edition, Wiley & Sons, Hoboken 2006, ISBN 978-0471250319 .
• Axel Zarske: Crenuchidae. Prachtsalmler , Crenuchus and Poecilocharax. In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , pp. 286 and 798 f.

Web links

• Prachtsalmler on Fishbase.org (English)